Door locking mechanism



1'937- A. SCHNEIDER DOOR LOCKING MECHANISM Filed Nov. 15, 1936 NTHONY SCHNEIDER III IIIII Patented Aug. 17, 1937 r H j UNITED STATES PATENT OFFICE noon LOCKING MECHANISM Anthony Schneider, Silverton, Ohio Application November 13, 1936, Serial No. 110,120

'7 Claims. (01. 70-269) This invention relates to door control means gravity and by a compression spring 6 effective for use in emergencies such as robbery. The genbetween a part of the bracket 2 and the flange eral object of the invention is to provide means on the shank member 3 which serves to back the for locking a door, instantly, from a location respring 5. The arrangement is obviously such '5 mote therefrom if desired, and to maintain the that when the bolt shank 3 is released to the ac.-

door locked for a substantial yet short period of tion of the spring 6, if a notch in the member I time such as a few minutes, and thereupon autolie opposite the bolt tongue 4 as in Figs. 5 and 6, matically unlock the door. The invention is parthe bolt will immediately enter the notch, whereas ticularly adaptable for doors of the revolving type if under the conditions of bolt release a tooth and another object of the invention is to proofthe member I lie opposite the bolt tongue, 10 vide a mechanism suitable for such a door. the spring 5 will yield but as soon as the door The exact nature of this invention together be turned sufiiciently to register a notch of the with further objects and advantages thereof will member I with the bolt tongue, the spring 5 will be apparent from the following description taken cause the latter to enter such notch.

in connection with the accompanying drawing, For operation of the bolt means the shank part 15 in which Figs. 1 and 2 are elevation and plan 3 is provided with a projection 3a arranged to views respectively showing an embodiment of the be engaged by a bolt control member 1 here illusinvention applied to a revolving door, parts being trated as a crank pin projecting from a gear 8 broken away to show details of construction, the mounted for free rotation upon a bracket 9. The

mechanism being in unlocked position; Fig. 3 arrangement is such that when the gear 8 is ro- 20 is an enlarged sectional detail as in the plane of tated, as counterclockwise in Fig. 6, the member line 3--3, Figs. 1 and 2, showing parts of the 1 will travel a circular path, in a short uppercontrol mechanism; Fig. 4 is a View similarto most stretch of which engagement will be had Fig. 3 but showing the parts in locked position; with the bolt projection 3a to move the bolt Fig. 5 is a horizontal section as in the plane of against the spring 6 to the unlocked position of 5 line 5-5, Fig. 1; Fig. 6 is a vertical section as in Figs. 1 and 6, whereas in the greater portion of the plane of line 66, Fig. 1. such path of the member I the bolt will be main- I With reference now to the drawing the door, tained in locked position by its spring 6.

which may be of the usual four-leaf design to be Means are provided for so driving the gear 8 0 cooperative with a cylindrical housing as indiand thus the member 1 and at different speeds cated in Figs. 1 and 2, mounted for rotation upon in the two stretches of its travel. For high speed a vertical axis, is provided at its upper end with operation of the gear to quickly release the bolt,

a circular member I having teeth as shown. a high speed motor Ill is provided, mounted as Bolt means are provided for engagement with upon the bracket 9 and having a pinion ll meshthe teeth of the member I, to lock the door by its n With t e gear- 35 securement against rotation. For mounting the For low speed operation through the long bolt means a bracket 2 is arranged above the stretch of the member I, a low speed motor [2 is door and the bolt means mounted in the bracket provided also mounted on the bracket 9, and for movement between locking and unlocking podriving the gear 8 through speed reducing means 40 sitions. The bolt means here shown includes a such as the pinion l3, gear 14 and pinion I5. 40 shank member 3 havingat its end a tongue For control of the motorslil and I2 and thus member 4 which latter projects through the ceilof the locking of the door, switch means are proing of the door housing to be engag-eable with .vided in the circuit indicated in Fig. 1'. Such the locking teeth of the door. These teeth being switch means includes a pair of automatic of rectangular section the tongue member of the switches generally indicated at l6 and il, con- 45 bolt means is slidably mounted upon its shank veniently mounted on the bracket 2, and a switch member as by the pin and slots illustrated in 'l8 which may be located remotely from the door Figs. 1 and 6, and a spring 5 arranged to be for convenient access to the operator. effective between the tongue member and a suit- The switches I6 and Il are controlled as by able flange projection on the shank member, to a disk [9 mounted in the bracket 2 for oscilla- 50 yieldably maintain the tongue member upon tory adjustment as indicated in Figs. 1, 3 and 4, the shank member in the most extended position in timed relation with the bolt. The face of permitted by the pin. the disk I9 is provided with a pair of depressions The bolt means is in itself balanced by a unit 20, 2|, registrable with ball-headed plungers 20a toward locking position as here shown, both by and Zia respectively, on the switches l6 and I1. 55

These switches are so arranged, as by the springs illustrated in Fig. 1, that when the disk I9 is in the position of Fig. 3 with its depressions in registry with the switch plungers, the switch [6 will be open and the switch" I! closed, whereas when the disk assumes the position of Fig. 4, with its depressionsout of registry with the switch plungers, theswitch [6 will be closed and the switch [1 open.

For operation ofthe disk l9 between its two positions in accordance with movement of the bolt, the member I9 is provided with a slot 22 engageable by a pin 32) on the bolt shank 3.

The. switch I6 is arranged in the circuit to control the supply of current to thefhigh speed" motor i irom'the' line L1, L2, as illustrated this circuit including all three of the switches. The switch I1 is arranged to control the'lowspeed motor I2, as will appear.

Operation will be as follows, commencing with the parts in the position illustrated in Figs. 1, '2,

3, 5 and 6. Instant closure of the switch I8 complete's'ithe circuit of the high speed, motor I0,

same time closing of the switch I6 starts the low speed motor l2. The member I thus continues to travel but at slow speed through its circular path-during which time the door is maintained locked.

Eventually the member 1 rises to reengage the member'3a, withdraw the'bolt and return the member 19 to the position of Fig. 3. This reopens the switch l6, cutting off the current fromthe'motor I2, with the parts all returned to their original positions and the door unlocked.

a bolt control. member mounted for movement A bell 23 or other signal device maybe arranged in the. circuit as illustrated to sound If desired a e an alarm upon locking of the door. number of switches such as I8 may be provided at different locations, from any of which the door locking cycle may be initiated, an as will be appreciated by one familiar with the art.

WhatI claim is: g

1. Door control means, bolt means for locking said door and balancedtoward locking position, a

bolt control member .mounted for movement in a path having a short stretchxwherein said bolt means is held from locked position by said member and a long stretch wherein said bolt means is released by said member, and means for causing said bolt control-member to travel said path and including means for. automatically stopping said memberin said short stretch.

- 2. Door control means, boltmea-ns for locking said door and balanced toward locking position,

in' an endless path having a short stretch wherein said bolt means is-held from locked position by said member and a long stretch wherein said bolt position.

means is released by said member, and means 7 a bolt control member mounted for movement in V 1 a path having a short stretchwherein said bolt means is held from locked position by said mem-- her and a long stretch wherein saidbolt means is released by said member and meansKfor causing said bolt control member to travel said path and at a lower speed in said long stretch than in said short stretch, and means for automatically stopping said member in said shortstretch.

4.jDoor control means, bolt means for locking a bolt controlmember mounted for'movement in a path having a. short stretch wherein said bolt means is held from locked position by said member anda. long stretch whereinsaid bolt means is released by said member, motor means ior causing said bolt control member to travelsaid long stretch at a low speed, means for stopping said motor means at the end of said travel, and means for moving said member from said short stretch to said longstretch athigh speed.

5. Control means for a door of revolving type comprising bolt means for locking said door and balanced toward locking position, a bolt'controlfi' 'member positionable to hold saidbolt means 7 said door and balanced toward locking position, i

from locking position,--an'd mounted for move- I ment in a path to and from such position, high speed driving means for moving saidflm'ember from said position and low speed driving means 5 for returning said member to said position:

' 6. Control means for a door of revolving type comprising bolt means 'for locking'sa'id door and balanced toward locking position, a bolt control member positionable to hold'said b'olt means from locking position, and mounted for movement in a path to and from. such position, high speed driving means for moving saidmemb'er'i rom said position and including a remote starting control, and low speed-driving means for returning;

said member. tosaid positionand including start means automatically. effective'upon operation .of said highspeed driving means and stop means automatically effective upon'attainment by said member of said position;

7. Control means fora door of revolvingftype comprising bolt means for locking 'said door and balanced toward locking'position, a bolt control member. positionable to hold said bolt. mean'sfrom 1 :locking position, and mounted-for movement in a patlrto and from'such position, high speed ANTHONY SCHNEIDER.

CERTIFICATE OF CORRECTION. Patent No. 22,090,520 August 17, 1957.

' SCHNEIDER It is hereby'certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 1, first column, line 5h, for the word "by" read as; and that the said Letters Patent should be read with this correction therein that the same may conformto v the record of the case in the Patent Office.

Signed and sealed this 12th day of October, A. D. 1957.

Henry Van Arsdale. (Seal) Acting Commissionerof Patents. 

